{"title":"Summation formulas of hyperharmonic numbers with their generalizations","authors":"Takao Komatsu, Rusen Li","doi":"10.1007/s13370-023-01131-y","DOIUrl":null,"url":null,"abstract":"<div><p>In 1990, Spieß gave some identities of harmonic numbers including the types <span>\\(\\sum _{\\ell =1}^n\\ell ^k H_\\ell \\)</span>, <span>\\(\\sum _{\\ell =1}^n\\ell ^k H_{n-\\ell }\\)</span> and <span>\\(\\sum _{\\ell =1}^n\\ell ^k H_\\ell H_{n-\\ell }\\)</span>. In this paper, we derive several formulas of hyperharmonic numbers including <span>\\(\\sum _{\\ell =0}^{n} {\\ell }^{p} h_{\\ell }^{(r)} h_{n-\\ell }^{(s)}\\)</span> and <span>\\(\\sum _{\\ell =0}^n \\ell ^{p}\\left( h_{\\ell }^{(r)}\\right) ^{2}\\)</span>. Some more formulas of generalized hyperharmonic numbers are also shown.</p></div>","PeriodicalId":46107,"journal":{"name":"Afrika Matematika","volume":"34 4","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Afrika Matematika","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s13370-023-01131-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 1
Abstract
In 1990, Spieß gave some identities of harmonic numbers including the types \(\sum _{\ell =1}^n\ell ^k H_\ell \), \(\sum _{\ell =1}^n\ell ^k H_{n-\ell }\) and \(\sum _{\ell =1}^n\ell ^k H_\ell H_{n-\ell }\). In this paper, we derive several formulas of hyperharmonic numbers including \(\sum _{\ell =0}^{n} {\ell }^{p} h_{\ell }^{(r)} h_{n-\ell }^{(s)}\) and \(\sum _{\ell =0}^n \ell ^{p}\left( h_{\ell }^{(r)}\right) ^{2}\). Some more formulas of generalized hyperharmonic numbers are also shown.